Router SIGSEGV

[zmailer <zmailer@lists.com.ar>]

Hi,

We have found a problem with the router.
You can do a DOS attack by sending a simple 
mail.

Creating a To: field in the header like:
To: "\(AnyText"

the router dies with a SIGSEV whitout removing
the message, so it keeps processing it whit the same
result....

Any text, between double quotes starting with a
backslash parenthesis, but without a mail address
between less and greater than.


I'm testing this on a zmailer-2.99.56 version, 
but 2.99.56-patch1pre2 has the same problem.

We have been looking but didn't find the problem yet.
So, if somebody can help....

TIA.

Example
=======
EHLO x
MAIL FROM:<test@test.com>
RCPT TO:<some@one.com>
DATA
From: test@test.com
To: "\(Troubles"
Subject: DDOS

asdfg

.

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